Warping machines



Feb. 11, 1958 A. w. H. PORTER ET AL WARPING MACHINES 19 Sheets-Sheet 1 Filed Jan. 19, 1955 Inventors ALLAN W. H. PORTER W\LL|J1M C. JIRN LD 1w! ANDREW ROBERTSON M, W1 M A Home ys Feb. 11, 1958 A. w. H. PORTE ET AL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 M219 Sheets-Sheet 2- 7 Inventors JILL/1N WH PORTER, WILLIAM CAHNOLD kw; ANDREW ROBERTSON 7 M Ww- A Mar ne yS Feb. 11, 1958 w. O T R ET AL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 5 l t ALLA N W H. PORTER, wlLLmfig jfioLo ma JINDREWROBERTSON 7 W. WvQ W Attorneys Feb. 11, 1958 A. w. H. PORTER ET AL 2,

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 4 1 r ALLAN wu PORTER, WILLIAM a fi fi w 114A ANDREW Rossmsom A ttorrieys Feb. 11, 1958 A. w. H. PORTER ET AL WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 5 I t ALLAN w. H. PORTER, wuum fifi'fi fiow ama ANDREW ROBEFHSON Atterneys Feb. 11,4958 A. w. H. PORTER ET AL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 6 Inventors JILLAN W. HPORTEB, WILLIAM C. )YQNOLD L'ml ANDREW ROBERTSON Aflorheys Feb. 11, 1958 A. w. H. PORTER, ET AL 2, 0

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet '7 228 Inventors JILL/IN w,u. PORTER, WILLIAM c. ARNOLD Ind JINDREW ROBERTSON Attorneys Feb. 11, 1958 A. w. H. PORTER ETAL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 i9 Sheets-Sheet s I t mun wu. PORTER, WILLIAM ngr aw 1w! ANDREW ROBERTS N Attorneys Feb. 11, 1958 A. w. H. PORTER ET AL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 9 Inventors ALLAN W. H. PORTER, \NlLLMM G ARNOLD l'nd ANDREW ROBERTSON A ftorneyS Feb. 11, 1958 A. w. H. PORTER ET AL 2,322,504

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 1O l ALLEN wH. PORTER WILLIAM fq r 'fiow ma ANDREW noeeaTsou Feb. 11, 1958 A. w. H. PORTER ET AL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 11 JL LEN w. H. enna.wrLLmm fi v ivoLb A171 ANDREW ROBERTSON Attorneys Feb. 11, 1958 A. w. H. PORTER ET AL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 12 1 t ALLAN w. H. PORTER, WILLIAM gfin h w 1114 AN DREW ROBERTSON Attorneys Feb.

WARPING MACHINES 19 Sheets-Sheet 13 ALLEN I r h 7/ i 1 i I ,225 7JL QW 23 6 23g -i-' --2/7 Inventors W.H. PORTER, WILLIAM c. ARNOLD A lfornesas 1958 A. w. H. PORTER ET AL 2,822,604

WARPING MACHINES a AflorheyS Inventors fiLLEN W H PORTER, WILLIAM C ARNOLD l9 Sheets-Sheet 14 1rd ANDREW ROBERTSON W, W3-

Filed Jan. 19, 1955 Feb. 11, 1958 A. w. H. PORTER ET AL 2,822,604

WARPING MACHINES 19 Sheets-Sheet 15 Filed Jan. 19, 1955 Inventors ALLEN H. PORTER, WILLIAM G. AFtNOLD 8 \nd ANDREW ROBERTSON 7 9; *GQAW Attorneys Feb. 11, 1958 A. w. H. PORTER ET AL 2,822,604-

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 16 u s r- I I Inventors ALLAH W H. PORTER, WILLIAM C HRNQLD lmd ANDREW ROBERTS N fi wmie, WWI/1W A Horn 2 ys Feb. 11, 1958 A. w. H. PORTER 1" AL 2,822,604

WAPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 18 Inventors ALLEN u. PORTER, WILLIAM cfl nmoio l-nd ANDREW ROBERTSON Attorneys Feb. 11, 1958 A. w. H. PORTER ET AL 2,822,604

WARPING MACHINES Filed Jan. 19, 1955 19 Sheets-Sheet 19 OOP I Inventors JILL/ IV WH. PORTER WILLIAM (LARNOLD 8 am ANDREW ROBERTSON 7 #OMLMMLLL'I A ltorneys United WARPING MACS .Allau William Henry Porter and William Charles Arnold,

Burton-on-Treut, and Andrew Robertson, Bristol, England, assignors to F. N. F. Machinery Manufacturing Company Limited, Burton-on-Trent, England Application January 19, 1955, Serial No. 482,848

15 Claims. (CI. 28-36) sible and that the operator should be able to install an empty beam in the machine, wind the beam and remove it from the machine without other assistance. Furthermore, the braking effort which can be applied to bring the beam to a standstill should vary as the weight of yarn on the beam increases otherwise the braking may be too light for a full beam so that an inordinately long time is required to bring a full beam to rest, or may be too violent for an empty beam. The tension rollers however do not increase in inertia during winding and therefore require a constant braking effort for stopping which should be adjusted so that the tension rollers and the beam both come to a standstill at the same time. The function of these rollers is not only to arrange the yarns in an orderly manner but to even out the tension in the yarns and impart the necessary and desired tension to them before they are wound on the beam thus ensuring that when the yarns are drawn off the beam in weaving or knitting the cloth resulting is uniform throughout its length. The tension imparted to the yarns by the tension rollers may be varied by increasing the number of rollers around which the yarns have to pass and also by providing adjustable retardation to these rollers so that they are braked continuously during winding. The present invention enables this to be done using the same brake mechanism as is used to bring the rollers to a standstill when winding is stopped for any reason and also provides a simple and effective arrangement for varying the braking effort on the beam itself so that the beam is stopped at the same time as the rollers no matter what weight of yarn has been wound upon it.

The present invention also provides an improved arrangement of the head-stock and tail-stock between which the beam is supported, and also enables the beam to be raised mechanically into the correct position for engaging the head-stock and tail-stock, and then for these parts to be engaged, very simply and quickly.

It is also necessary, in order to ensure that the winding of the beam should be even, that the rate at which the yarn is drawn from a creel on to the beam should be constant throughout the winding of the beam. As the diameter of the beam increases therefore, it is necessary for the speed at which the beam is driven to be progressively reduced, and the present invention also provides a simplified mechanism for controlling the speed of the variable speed alternating current electric motor by employing the power of the motor itself to drive the mechanism for rocking the brushes.

g; es PatentO F According to the invention, the beam is rotated between 2,822,584 Patented Feb. 11, 1858 nected so that its movements cause the actuation of a spring in which the energy is stored which provides the braking effort to stop the beam so that, as the diameter of the warps on the beam increases the stress in the spring is adjusted by an amount determined by the contour of the cam, with the result that, when the brakes are released, eitherat the wish of the operator or by some form of stop motion, the requisite brakingeffort is applied.

The'head-stock and tail-stock, between which a beam may be mounted, each consists of a flange member carrying a part engageable with the beam by which the beam may be driven and retarded, and a central spigot independent of the flange member and which may be withdrawn while the beam is introduced and then moved so as to project inwards into the hub of the beam and sup- .port it. Thus the functions of driving and supporting the beam are separate and although the spigot may rotate with the beam it does not have any part in driving or retarding it. T he beam is preferably driven at one end by a pulley attached to the flange of the head-stock at that end and this flange also carries a brake drum of an internally expanding brake. The tail-stock is not driven but the flange also carries aisimilar brake drum. Arrangements may be provided so that the spigot of both the headstock and the tail-stock maybe moved in and out simultaneously. Preferably thefiangeshave sector pieces .projecting from .theirrinwardly facing surfaces shaped to fit the outer surface of the hub of the beam so as .to locate this hub accurately in relation to the spigot. By arranging that these parts are uppermost when the beam is to be removed, the beam can be dropped clear of the flanges once the spigots have been withdrawn without interference. Preferably the head-stock and the tail-stock are placed as low as possible so as to carry the beam just clear of the floor, and lifting armsare provided operated hydraulically or mechanically, toengage the hubs of the beam so as to lift the beam off the floor into alignment with the spigots.

An example of a warper according to the present invention is shown in the accompanying drawings, in which:

Figure 1 is a side elevation of thewarper;

Figures 2 and 2a together constitute a fragmentary plan view of the end portions of the warper, the midportion of which is broken away; I

Figures 3 and 3a together constitute a fragmentary front elevation of the ends of the warper, as seen from the right in Figure 1;

Figures 4 and 4a together constitute a'plan view in part section of the control mechanism;

Figures 5 and 5a together constitute a fragmentary front elevation showing the head-stock and tail-stock and brake mechanism in part section;

Figure 6 is a section of Figure 5 on the line VI-VI;

Figure 7 is a side view as seen from the left in Figure 3 of part of the control mechanism and the tension rollers in part section;

Figure 8 is a similar view to Figure 7 in part section on the line VIIIVIII in Figure 3;

Figures 9 and 9a together constitute a viewofithe main driving motor and clutch as seen from the right in Figure 1;

Figure 10 is a side elevation of the variable brake control mechanism and clutch operating gear;

Figure 11 is a plan view in part section of part of Figure 10;

Figure 12 shows to a larger scale a-detail of the fecler .for the variable brake mechanism;

Figure 13 isaside elevation, astseen from the right in vFigure 3, of the mechanism for raising the beam into position; 

